Answer: As a prominent manufacturer and exporter of power line equipment, we recognize that selecting the correct cable laying method is crucial for a project's long-term reliability and cost-effectiveness. The three primary methods are:

1. Direct Laying: This is a simple and economical method where cables are laid directly into a trench on a bed of sand and then covered with another layer of sand and protective bricks. It is ideal for open areas and projects where future expansion or maintenance is not a major concern.

2. Draw-in System: This method involves laying ducts or conduits with manholes at strategic points. Cables are then pulled through these ducts. While the initial cost is higher, it allows for easy maintenance, repairs, and future upgrades without extensive re-excavation. It is a preferred method for congested urban areas.

3. Troughing System: In this method, cables are laid in pre-cast concrete or fiberglass troughs, which are then covered. This system offers robust protection and is suitable for areas where mechanical damage is a high risk.

Our equipment portfolio provides comprehensive solutions for all three methods, from trenching and backfilling tools to advanced cable pulling and guiding systems for the draw-in method.